The 'Rat Movie' memes originate from two animated short films created by the popular Twitch streamer Jerma985, titled 'Rat Movie: Mystery of the Maya' and 'Rat Movie 2: The Movie.' Featuring primitive 3D animation and absurd voice acting, the films became legendary within the Jerma fan community, particularly the 'Rats, rats, we are the rats' birthday song and the character of the Giant Rat. These elements spawned countless remixes, where the rats are edited into various songs, movies, and pop culture scenarios. The meme represents the chaotic, surreal humor of Jerma’s content and is often used to celebrate birthdays or establish humorous dominance using the 'Giant Rat' persona.